Question

Eutrophication is characterized by extreme algal growth (bloom) caused by the rapid input of fertilizers. When the algae on the surface of the water bloom, they prevent sunlight from reaching other aquatic plants found below causing them to die. These dead plants are in turn decomposed by bacteria, a process that requires oxygen and produces carbon dioxide. The decrease of oxygen eventually leads to the death of all other aquatic organisms. Which statement is NOT applicable to eutrophication? Select one: a. Provides an example of top-down food web dynamics. b. Aquatic animals die because they are unable to extract the energy from glucose. c. The lack of light prevents plants from producing glucose d. The addition of fertilizers reduces intraspecific competition between algae. e. Bacteria are heterotrophs.

          Eutrophication is characterized by extreme algal growth (bloom)
caused by the rapid input of fertilizers. When the algae on the
surface of the water bloom, they prevent sunlight from reaching
other aquatic plants found below causing them to die. These dead
plants are in turn decomposed by bacteria, a process that requires
oxygen and produces carbon dioxide. The decrease of oxygen
eventually leads to the death of all other aquatic organisms. Which
statement is NOT applicable to eutrophication?
Select one:
a. Provides an example of top-down food web
dynamics. 
b. Aquatic animals die because they are unable to extract
the energy from glucose.
c. The lack of light prevents plants from producing
glucose
d. The addition of fertilizers reduces intraspecific
competition between algae.
e. Bacteria are heterotrophs.

Added by Brittany J.

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